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单选题
If there is water in fuel oil, the revolution of the engine will （）.
A
decrease
B
increase
C
be dismantled
D
be reassembled
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单选题Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?（）A
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increasing the lube oil pressureC
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单选题A viscosity regulator used for an engine is usually provided in order to （） for an engine burning heavy fuel oil.A
regulate the fuel supplyB
maintain a constant fuel viscosity at the fuel valvesC
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alter the fuel density
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excessive fuel oil consumptionC
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单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.A
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单选题Which of the followings will affect the spray of fuel oil?（）A
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cylinder water temperatureC
asphalt in fuel oilD
lub oil
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Water discharging from the water outlet of the lube oil purifierB
Fuel oil discharging from the water outlet of the lube oil purifierC
Lube oil discharging from the water outlet of the lube oil purifierD
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单选题Low compression pressure in a diesel engine is caused by（）A
low water in the expansion tankB
improperly seated valvesC
low fuel oil pressureD
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单选题The sludge tank installed in the diesel engine room is used to collect（） Ⅰ.sludge from the fuel oil settling tanks ad centrifuge Ⅱ.water that has been collected in the settling tankA
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worn or broken cylinder liner sealing ringsB
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单选题The fuel from the bunker tanks must be treated by before entering the service tanks（）, from where the fuel enters（）A
centrifugal separators; the engine cylinderB
oily water separators; the engine cylinderC
oily water separators; the fuel supply systemD
centrifuges; the fuel supply system
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单选题An oil water monitor is required in order to measure （）.A
the oil content in waterB
the water content in fuel oilC
the water level in bilge wellD
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单选题Water in the fuel can prevent the engine from starting, prevent it from developing full power, or （）A
run at an irregular speedB
create high lube oil temperatureC
cause the engine to over-speedD
cause blue smoke in the exhaust
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increase in fuel economyC
reduction in lube oil viscosityD
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water in the fuel oil supplyB
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unburned fuel oilD
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单选题Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）A
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increase engine loadC
decrease engine powerD
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loss of powerB
misfiringC
low fuel oil pressureD
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单选题A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.A
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